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Which option could be used for vSphere HA heartbeats?
A. An iSCSI LUN used for booting the master ESXi host.
B. An iSCSI LUN backing an RDM connected over 10GB Ethernet
C. An NFS datastore shared with the all hosts, sync, no_root_squash and read only options
D. A Fibre Channel LUN on an 8GB active/active array backing a VMFS5 datastore
Correct Answer: D
Explanation/Reference:
The concept is to use heartbeat on a highly redundant setup. Active/Active fulfills that.
Typically, Active-Active means that IO being read from or written to a particular logical device (LUN) can happen from either of two redundant storage controllers, or storage processors as you put it.